/*
 * pawsmainwidget.cpp - Author: Andrew Craig
 *
 * Copyright (C) 2003 Atomic Blue (info@planeshift.it, http://www.atomicblue.org)
 *
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation (version 2 of the License)
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */
// pawsmainwidget.cpp: implementation of the pawsMainWidget class.
//
//////////////////////////////////////////////////////////////////////
#include <psconfig.h>

#include <iutil/vfs.h>
#include <iutil/document.h>
#include <iutil/evdefs.h>
#include <iutil/databuff.h>
#include <csutil/xmltiny.h>
#include <csutil/inputdef.h>
#include <csutil/event.h>
#include <iengine/mesh.h>
#include <iengine/sector.h>

#include "pawsmainwidget.h"

#include "pawsmanager.h"
#include "util/log.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

pawsMainWidget::pawsMainWidget()
{
    screenFrame = csRect(0,0,graphics2D->GetWidth(),graphics2D->GetHeight());
    if ( !LoadGUIKeys( "/this/data/guikeys.xml" ) )
        Error1("Failed to load GUI keys");

    //guiCamera = NULL;
    clipRect = csRect(0,0, graphics2D->GetWidth(), graphics2D->GetHeight());
        alpha = -1;
}

pawsMainWidget::~pawsMainWidget()
{
}


bool pawsMainWidget::OnKeyDown( int keyCode, int key, int modifiers )
{
    pawsScriptKey* found = 0;
    
    for ( size_t x = 0; x < keys.Length(); x++ )
    {
        if ( keys[x]->key.codeRaw == (utf32_char)keyCode &&
             csKeyEventHelper::GetModifiersBits( keys[x]->key.modifiers ) == (uint32)modifiers )
        {
            found = keys[x];             
            break;
        }
    }
             

    if ( found )
    {
        pawsWidget* widget = FindWidget( found->widgetName );
        if ( widget ){
            widget->PerformAction( found->action );
            return true;
        }
    }

    return false;
}

bool pawsMainWidget::OnMouseDown( int button, int keyModifier, int x, int y )
{
    return false;
}

bool pawsMainWidget::OnMouseUp( int button, int keyModifier, int x, int y )
{
    return false;
}

bool pawsMainWidget::OnDoubleClick( int button, int keyModifier, int x, int y )
{
    return false;
}


bool pawsMainWidget::LoadGUIKeys( const char* guiKeyFile )
{
    csRef<iVFS> vfs = CS_QUERY_REGISTRY( PawsManager::GetSingleton().GetObjectRegistry(), iVFS );

    csRef<iDataBuffer> buf = vfs->ReadFile( guiKeyFile );
    csRef<iDocumentSystem> xml = csPtr<iDocumentSystem> ( new csTinyDocumentSystem );

    if ( !buf || !buf->GetSize() )
    {
        return false;
    }

    csRef<iDocument> doc = xml->CreateDocument();
    if(!doc)
        return false;

    const char* error = doc->Parse( buf );
    
    if ( error )
    {
        Error2("Error in XML: %s\n", error );
        return false;
    }
    
    csRef<iDocumentNode> root = doc->GetRoot();
    if ( !root ) return false;

    csRef<iDocumentNode> topNode = root->GetNode("keys");
    if ( !topNode ) 
    {
        Error2("Missing <keys> tag in %s",guiKeyFile); 
        return false;
    }
    csRef<iDocumentNodeIterator> iter = topNode->GetNodes();

    
    while ( iter->HasNext() )
    {
        csRef<iDocumentNode> node = iter->Next();

        if ( strcmp( node->GetValue(), "key" ) == 0 )
        {
        
            pawsScriptKey * key = new pawsScriptKey;
            
        const char* keyvalue = node->GetAttributeValue ("key");
        csInputDefinition::ParseKey ( PawsManager::GetSingleton().GetEventNameRegistry (),
	    keyvalue, &(key->key.codeRaw), &(key->key.codeCooked), &(key->key.modifiers) );
                        
            key->widgetName = node->GetAttributeValue("widgetname");
            key->action     = node->GetAttributeValue("action");

            keys.Push( key ); 
        }
    }
    
    return true;
}

void pawsMainWidget::ApplyWindowSettingsOnChildren(pawsWidget* caller,int alphaMin,int alphaMax,float fadeSpeed,bool fade, int fontScaling)
{
    for (size_t z = 0; z < children.Length(); z++ )
    {
        pawsWidget* wdg = children[z];
        if(wdg->IsConfigurable())
        {
            if(wdg != caller)
                wdg->DestroyWidgetConfigWindow();

            wdg->SetBackgroundAlpha(alphaMax);
            wdg->SetMinAlpha(alphaMin);
            wdg->SetFadeSpeed(fadeSpeed);
            wdg->SetFade(fade);
            
            // Apply font scaling if allowed
            if (fontScaling && wdg->GetFontScaling())
                wdg->SetFontScaling(fontScaling);
        }
    }
}